Truck side frame.



J A. LAMONT. .mucx SIDE FRAME.

APPLICATION FILED IUNEZI, 19H.

Patented July 30,1918.

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Patented J uly,30, 1918.

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TRUCK S!DE FRAME. APPLICATION FILED luuazx. 1912.

Patented July 30, 1918.

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JOHN A. LAMON'L OF CHICAGO, ILLINOIS, ASSIGNOR. TO AMERICAN STEEL FOUNDRIES, OFCHICAGO, ILLINOIS, A CORPORATION OF NEW JERSEY.

TRUCK SIDE FRAME;

Specification Letters Patent. Patented uly 30, 1918.

I Application filed June 21, 1917. Serial No. 176,032,

To all whom it may concern:

Be it known that I, JOHN A. LAMONT, a citizen of the United States, and resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Truck SideFrames, of which the following isa specification.

This invention relates to railway cars, and more particularly to a built-up side frame for use in connection with car trucks.

One of the objects of the invention is to economize in the costof construction of truck side frame members.

Another object is to lessen the weight of such structure and at the same time provide a simple and compactarrangement adapted to meet the various requirements for successful commercial operation.

These and other objects are accomplished by providing a side frame having a tension member, a compression member, a strut therebetween, and-novel means whereby said members and strut may be interconnected.

The invention is illustrated on the accompanying sheetsof drawings, inwhich,

Figure 1 is a top plan view of a truck side frame member embodying 'my invention;

Fig. 2 is a side elevation of the same;

Fig. 3 is a bottom plan view of the same side frame; 7 4

Fig. 4 is a bottom plan view of a side frame member embodying a modification of my invention;

Fig. '5 is a fragmentary side elevation of a side'frame showing modified means for connecting the strut and the compression member;

Fig. 6 is a sectional view taken-in the plane of line 66 of Fig. 2;

Fig. 7 is a sectional view taken in the plane of line 77 of Fig. 2; I

Fig. 8 is a similar sectional view of a modification of my invention, the upper part of which is shown in side elevation of Fig. 5;

Fig. 9 is a fragmentary sectional view taken in the plane of line 9'9 of Fig. 1;

Fig. 10 is a sectional view of a portionof the struttaken in the plane of line 10-10 of Fig. 2;

V Fig. 11 is a plan view of one end of. the 4 tension member showing one method of upsetting the'end for tying the same tothe pedestal casting, and, g

Fig. 12 is a plan view of the end of a tension member showing the end upset in a 1 different manner. a r

The various novel features of the invention will be apparentfrom the following description and drawings, andwill beparticularly pointed out in the appended claims.

The truck side frame includes .a compression member 15, a ten'sion'member. 16, a strut 17 extending therebetween intermediate the end of the tension and compression members, and a journal box pedestal member 18 to which the ends of the tension andicompressionmembers are secured. The compression member 15 preferably is of channel section, (see Fig. 7)., which preferably extends through the upper apertured portion -19 of the strut 17, and is permanently secured to the upper band of the apertured portion by suitable rivets'20, the flange portions of the channel .resting upon shoulder portions 21 formed in the upper end of the strut17. The central portion of the channel member is horizontally arranged and the ends extend in opposite directions and are bent slightly downwardly andreceive b'etween their flanges the upper flanged portion 22 of a fillet 23 forming a part of each of the pedestal castings 18. The extreme ends of the compression member extend into horizontally arranged recessed portions 24 formed in the upper part of the pedestal portions 26 spaced apart by a relatively small intermediate portion 27. The tension member in this case includes two circular portions 28 which are connected by a web 29. These two circular portions 28 of the tension member are received by the semicircular grooved portions 26 of the strut 1'7 with the web portion 29 engaging the intermediate portion 27 of the strut. The lower portion of the strut is curved, and likewise the middle portion of the tension member similarly is curved and the opposite ends extend upwardly and outwardly. Each of the outer ends of the tension member extends through an aperture 30, (see Fig. 6), which is shaped to fit the particular section of this tension member. The ends of the tension member extend completely through the aperture 30 which extends in an upward and outward direction, and after the ends of the tension member 16 are passed through the apertures 30 they are riveted or upset, as shown at 31. The curved portion of the tension member 16 and the lower portion of the strut 17 are permanently secured together by rivets 32 which pass through the web portion 29 of the tension member. It is seen that when all of the parts are assembled, as shown in Fig. 2, that the side frame is rigid, and as a matter of fact, in effect is integral.

If desired the ends of the tension member 16 may have each of its circular portions upset separately, as shown at 33 in Fig. 12. In any event the upset portion or portions of the tension member engage the abutting shoulders 34 of the pedestal castings 18 to rigidly hold the parts together.

In Figs. 4, 5, and 8, I have shown a modification of the invention in which the upper part of the strut 35 is provided with a guide portion 36 which is straddled by the channel compression member 37. A plate 38 extends over the central portion of the compression member and the plate 38, channel compression member37 and strut are permanently secured together by rivets 39. The lower part of the strut, in this modification, is provided with semi-circular grooves 40 which are spaced farther apart, at the central part of the strut 35, than shown in Fig. 7, and are connected by a relatively wide intermediate portion 41. By referring to Fig. 4 it will be noted that the grooved portions 40 converge outwardly, as also do the semi-circular portions of the tension member which occupy said grooves.

It will be apparent that there may be other modifications of the invention than those herein particularly shown and described, and it is my intention to cover all such modifications which do not involve a departure from the spirit and scope of the invention as set forth in the following claims.

I claim:

1. In a side frame, the combination of a compression member, a tension member, a strut extending therebetween, and a member to which one end of the compression member is connected, the end of the tension member being upset and engaging a portion of said member to form arigid connection therebetween. i

2. In a side frame, the combination of a strut having a grooved bottom portion, a compression member engaging the top of the strut, a tension member occupying the grooved portion of said strut, and an apertured member. through which the tension member extends and to which the compression member is secured, the end of the tension member being upset to form a rigid connection between the apertured member and tension member.

3. In a side frame, the combination of a strut having an aperture, a compression member extending through said aperture, a tension member connected to said strut, and a pedestal member to which said tension and compression members are connected.

4. In a side frame, the combination of a strut having apertured and grooved portions, tension and compression members, one of which passes through the aperture in said strut, and the other of which is located in a groove of said strut, and a pedestal to which the tension and compression members are connected.

5. In a side frame, the combination of a strut having an aperture in its upper portion and a grooved bottom, a compression member extending through said aperture, a tension member located in the groove of the strut, and a pedestal member to which the ends of said tension and compression members are connected.

6. In aside frame, the combination of a strut having an apertured and a grooved portion, a compression member extending through the aperture of the strut, a tension member located in a groove in said strut, and a member having an aperture therethrough through which the end of the tension member extends, the end of the compression member beingsecured to said apertured member, the end of the tension member being upset to form a rigid connection with the apertured member.

7. In a side frame, the combination of a tension member, a compression member, a strut therebetween, and a bearing box pedestal casting having a recessed portion for the reception of the end of the compression member, said casting having an aperture through which said tension member extends, the latter being upset to form a rigid connection with the casting.

8. In a side frame, the combination of a strut having a plurality of adjacently ar- Signed at Chicago, State of Illinois, this ranged grooves, a, tension member having a, 16 day of June, 1917. plurality of connected circular portions engaging said grooves, a compression member JOHN LAMONT connected to said strut, and a member to Witnesses:

which the ends of said tension and compres E. W. PALMQUIST,

sion members are connected. W. W. BADGER.

do 0! this patent my be obtained to: in mm cash, by addreuhg the "common: at htuu,

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